A UK-based non-profit group, comprising international agencies like Oxfam and Transparency International, has called on Treasury Minister Tulip Siddiq to stop her anti-corruption tasks for the British government.

Tulip should end her anti-corruption role within the UK government, even if an independent investigation acquits her of allegations that she had ties to her aunt Sheikh Hasina’s corrupt regime in Bangladesh, the UK Anti-Corruption Coalition said in a statement on Monday.

Tulip has a clear conflict of interests in her current ministerial role, and therefore the UK government should take important decisions to uphold its international reputation, the statement read.

Tulip is under pressure after weeks of revelations about her links to her aunt’s ousted autocratic regime, including the fact she lived in or owned properties paid for by Hasina’s allies.

Conservative leader Kemi Badenoch called for PM Keir Starmer to sack his minister over the weekend.

The prime minister's official spokesperson said on Monday afternoon that Starmer retained "full confidence" in his minister.

Last week, Tulip referred herself to Laurie Magnus, the prime minister’s adviser on ministerial interests.

Tulip has been asked about her links to her aunt’s Awami League party – for whom she once worked as a spokesperson – for many years, but has always claimed not to be involved in Bangladeshi politics.

Over the weekend it was revealed that former campaign posters for Tulip were found in Hasina’s residence after she left the country.

Since Hasina’s ouster on 5 August 2024, new information has emerged about Tulip’s connections to the ousted regime, including details of five properties in which she or her immediate family have lived which were originally purchased by people connected to the regime.

A corruption investigation relates to allegations of Tulip helping Hasina’s regime broker a deal with Russia in 2013 that overinflated the price of a new nuclear power plant in Bangladesh.

It is claimed that the deal inflated the price of the plant by £1bn – 30% of which was allegedly distributed to Tulip and other family members via a complex network of banks and overseas companies.

In concluding remarks the UK Anti-Corruption Coalition says: “The people of Bangladesh have removed a regime which extensively abused human rights and against which there are very serious allegations of wide-scale theft and corruption. The UK has a historic responsibility to support the new interim government of Bangladesh, to ensure a democratic transition, and to recover stolen assets, not least because some of those assets may be hidden in the UK itself.”